Comment # 25 on bug 833253 from Felix Miata

(In reply to Bernhard Wiedemann from comment #24)
> on 13.1 the workaround is
> pam-config --add --unix-nullok

This worked on a 13.1 and 13.2 host I just tried it on, including 'passwd -d'
for the first times ever on any openSUSE installation.

A question that does remain is is there readily discoverable and simple enough
documentation such that a user new to openSUSE or dependent on its previous
behavior won't be stymied to the extent I was. I create users via script before
ever starting X or YaST. Before this bug report I had no idea anything about
how the passwd command is allowed to work was configurable. The string pam is
absent from release notes for 12.3, 13.1 and 13.2.